Kẻ Bàng National Park lies in central Vietnam, near the border with Laos, and is known for its vast network of limestone mountains and underground rivers. The park forms part of one of the oldest karst landscapes in Asia, shaped over millions of years into a maze of caves, cliffs, and dense forest. Among its most famous features is Sơn Đoòng Cave, recognized as the largest cave on Earth, with sections so vast that clouds can form inside and a jungle grows beneath its collapsed roof.

The Temple of Horus at Edfu has a massive entrance pylon covered with sunk relief carvings. This Ptolemaic temple was constructed between 237 and 57 B.C.E.

This city in the Rhine Gorge is known for its winemaking, dramatic landscapes and 15-minute cable car ride to the Niederwald Monument (celebrating the German victory over France in 1871).

Yucatán, a Mexican state, is popular for its Gulf of Mexico beach areas and spectacular Mayan ruins. It is bordered by the states of Campeche and Quintana Roo.

Vukovar, a city in eastern Croatia, stands as a poignant symbol of resilience and beauty. Its rich history is etched into its architecture and monuments, telling the story of its resilience during the Croatian War of Independence.